﻿<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>全屏banner轮播切换CSS3动画 - 站长素材</title>

<link href="css/banner.css" rel="stylesheet" type="text/css" />

</head>
<body>

<div id="banner_box" class="banner_box">
	<div class="banner_cot">
		<!--放banner页面-->
		<div class="banner_list" id="banner_list">
			<!--第一个页面 天空下的猫老师-->
			<div class="page_box show">
				<div class="bg_box">
					<img src="image/sky_xia.png" class="sky_xia sky_anim2" />
					<img src="image/sky_shang.png" />

				</div>
				<div class="content">
					<div class="main_box">
						<div class="sky_cot sky_anim2">
							<img src="image/sky_cot2.png" />
						</div>
					</div>
				</div>
			</div>
			<!--第二个页面 房间里的猫老师-->
			<div class="page_box">
				<div class="bg_box">
					<img src="image/room_bg2.jpg" />
				</div>
				<div class="content">
					<div class="main_box">
						<div class="room_cot">
							<div class="room_anim">
								<img src="image/room_cot2.png" />
							</div>
						</div>
					</div>
				</div>
			</div>
			<!--第三个页面 雪中的猫老师-->
			<div class="page_box  ">
				<div class="bg_box">
					<img src="image/snow_bg3.png" />
				</div>
				<div class="content">
					<div class="main_box">
						<div class="snow_cot snow_anim">
							<img src="image/snow_cot3.png" />
						</div>
					</div>
				</div>
			</div>
			<!--第四个页面 森林中的猫老师-->
			<div class="page_box ">
				<div class="bg_box">
					<img src="image/forest_bg4.jpg" />
				</div>
				<div class="content">
					<div class="main_box">
						<div class="forest_cot forest_anim">
							<img src="image/forest_cont2.png" />
						</div>
					</div>
				</div>
			</div>

		</div>

		<!--放浮动链接小图标-->
		<div class="product_btns" id="product_btns">
			<div class="content">
				<div class="btns_box" id="control_box">
					<a href="#" class="icon_bg icon_show"></a>
					<a href="#" class="icon_bg"></a>
					<a href="#" class="icon_bg"></a>
					<a href="#" class="icon_bg"></a>
				</div>
			</div>
		</div>
	</div>
</div>

<script src="js/jquery-1.10.2.min.js"></script>
<script>
	(function () {
		//2016-13-10 begin
		var $banner_box = $("#banner_box"),
			$pages = $("#banner_list").find(".page_box"),
			$mainBoxs = $pages.find(".main_box"),
			$bgs = $pages.find(".bg_box img"),
			$controlBox = $("#control_box"),
			$productBtns = $("#product_btns"),
			$controls = $controlBox.find("a");
		var data = {
			pLength: $pages.length,//记录一共有多少个page_box
			curP: 0,
			isCan: true,
			isOnbtn: false,
			fColor: [2, 2, 1, 1, 1],
			dur: 3500,
			cNum: 0
		};

		//自动轮播换页函数
		var cId;
		var pageChange = function (idx) {
			if (data.isOnbtn)
				return;
			if (idx >= -1 && idx < data.pLength && idx != data.curP && data.isCan) {
				data.isCan = false;
				data.cNum++;
				clearInterval(cId);//停止动画
				idx = idx == -1 ? data.pLength - 1 : idx;//条件表达式 真前假后 指向最后一张
				$controls.removeClass("icon_show").eq(idx).addClass("icon_show");
				$pages.eq(data.curP).css({ zIndex: 0 });
				$pages.eq(idx).addClass("show").css({ opacity: 0, zIndex: 1 }).animate({ opacity: 1 }, 400, function () {
					$pages.eq(data.curP).removeClass("show");
					$(this).addClass("show");
					data.isCan = true;
					data.curP = idx;
					data.cNum--;
					if (data.cNum == 0) {
						//setInterval() 方法会不停地调用函数，直到 clearInterval() 被调用或窗口被关闭。
						cId = setInterval(function () {
							pageChange((data.curP + 1) % data.pLength);
							//% 求余数 当要处理 X % Y时, 如果, X < Y 的话, 回传值就是 X 自己 1 % 4 = 1
						}, data.dur);//data.dur 是时间
					}
				});
			}
		}
		//鼠标经过 下方导航
		$controls.on("mouseenter", function () {
			data.isCan = true;
			pageChange($controls.index(this));
			data.isOnbtn = true;
		});
		$controls.on("mouseleave", function () {
			data.isOnbtn = false;
		});

		cId = setInterval(function () {
			pageChange((data.curP + 1) % data.pLength);
		}, data.dur);

		//网页自由缩放  2016-10-12 调整
		var isIE6 = navigator.userAgent.indexOf("MSIE 6.0") > 0;//获取浏览器的版本
		//调整
		//页面自缩放
		var resize = function () {
			var w = $(window).width(),
				h = $(window).height();

			$banner_box.height(h);
			if (w / h < 1920 / 1080) {
				$bgs.height(h).css({ width: "auto", margin: -.5 * h + "px 0 0 " + -.5 * 1920 / 1080 * h + "px" });

			} else {
				$bgs.width(w).css({ height: "auto", margin: -.5 * w * 1080 / 1920 + "px 0 0 " + -.5 * w + "px" });
			}
			resize_img(w, h);//调用函数 改变内容图片大小

			var imgH = $bgs.height();
			$mainBoxs.height(imgH).css("margin-top", -.5 * imgH + "px");
			var cls;
			switch (true) {
				case w >= 1600: { cls = "big_view"; break; }
				case w < 1600 && w >= 1440: { cls = "mid_view"; break; }
				case w < 1440: { cls = "small_view"; break; }
			}
			var ws = $banner_box[0].className;debugger;
			if (isIE6 && (ws.indexOf("big") != -1 || ws.indexOf("mid") != -1 || ws.indexOf("small") != -1) && ws.indexOf(cls) == -1)
				location.reload();
			banner_box.className = "banner_box " + cls;
		};
		$(window).resize(resize);
		resize();

		function resize_img(w, h) {
			var snoww = w * 593 / 1920,
			   snowh = h * 448 / 1080;
			var roomw = w * 668 / 1920,
				roomh = h * 585 / 1080;
			var forestw = w * 500 / 1920,
				foresth = h * 636 / 1080;
			var skyw = w * 371 / 1920,
				skyh = h * 341 / 1080;
			if (w / h < 1920 / 1080) {
				//$(".snow_cot").height(snowh).css({ width: snowh * 宽 / 高 + "px", margin: "0 0 0" + -.5 * 宽 / 高 * snowh + "px" });
				$(".snow_cot").height(snowh).css({ width: snowh * 593 / 448 + "px", margin: "0 0 0" + -.5 * 593 / 448 * snowh + "px" });
				$(".room_cot").height(roomh).css({ width: roomh * 668 / 585 + "px", margin: "0 0 0" + -.5 * 400 / 585 * roomh + "px" });
				$(".forest_cot").height(foresth).css({ width: foresth * 500 / 636 + "px", margin: "0 0 0" + -.5 * 500 / 636 * foresth + "px" });
				$(".sky_cot").height(skyh).css({ width: skyh * 371 / 341 + "px" });

			} else {
				//$(".snow_cot").width(snoww).css({ height: snoww * 高 / 宽 + "px", margin: "0 0 0" + -.5 * snoww + "px" });
				$(".snow_cot").width(snoww).css({ height: snoww * 448 / 593 + "px", margin: "0 0 0" + -.5 * snoww + "px" });
				$(".room_cot").width(roomw).css({ height: roomw * 585 / 668 + "px", margin: "0 0 0" + -.5 * 400 * roomw / 668 + "px" });
				$(".forest_cot").width(forestw).css({ height: forestw * 636 / 500 + "px", margin: "0 0 0" + -.5 * forestw + "px" });
				$(".sky_cot").width(skyw).css({ height: skyw * 341 / 371 + "px" });
			}

		}
	})();
</script>

</body>
</html>

